Repair structure and method for liquid crystal display

Abstract

A data line repair structure for a liquid crystal display panel is disclosed. The data line repair structure includes a first repair line parallel to the scan line and crossing a first end of the data line; a fourth repair line formed in an oblique line area of the liquid crystal panel, coupled to the first repair line; a second repair line parallel to the data line, coupled to the gate driving chip and the fourth repair line; a third repair line parallel to the scan line, coupled to the second repair line and separated from a second end of the data line; and a floating line connected between the third repair line and the second end of the data line when the data line has a broken point.

1. A data line repair structure for a liquid crystal display panel comprising a scan line, a data line crossing the scan line, a thin film transistor formed where the scan line crosses the data line and connected to a pixel electrode, a gate driving chip electrical connected to the scan line to generate a gate signal to drive the thin film transistor, and a source driving chip connected to the data line to provide a data signal to the pixel electrode, the data line repair structure comprising:
 a first repair line parallel to the scan line and crossing a first end of the data line; 
 a fourth repair line formed in an oblique line area of the liquid crystal panel, coupled to the first repair line; 
 a second repair line parallel to the data line, coupled to the gate driving chip and the fourth repair line; 
 a third repair line parallel to the scan line, coupled to the second repair line and separated from a second end of the data line; and 
 a floating line connected between the third repair line and the second end of the data line when the data line has a broken point. 
 
     
     
       2. The data line repair structure as claimed in  claim 1 , wherein the source driving chip transmits the data signal through the first repair line, the fourth repair line, the second repair line, the third repair line and the floating line to the pixel electrode when the data line has the broken point. 
     
     
       3. The data line repair structure as claimed in  claim 1 , wherein the gate driving chip is bound to a first flexible board, the second repair line is connected to the gate driving chip by a line of the first flexible board and the third repair line is connected to the gate driving chip by another line of the first flexible board. 
     
     
       4. The data line repair structure as claimed in  claim 1 , wherein the second repair line is connected to a circuit line of a second flexible board and the third repair line is connected to the circuit line of the second flexible board. 
     
     
       5. The data line repair structure as claimed in  claim 1 , wherein the first end of the data line is on one side near the source driving chip and the second end of the data line is on the opposite side of the source driving chip. 
     
     
       6. The data line repair structure as claimed in  claim 1 , wherein a material of the floating line is metal, Indium Tin Oxide (ITO), or other conductive materials. 
     
     
       7. A data line repair structure for a liquid crystal display panel comprising a scan line, a first data line and a second data line crossing the scan line, a first thin film transistor formed where the scan line crosses the first data line and connected to a first pixel electrode, a second thin film transistor formed where the scan line crosses the second data line and connected to a second pixel electrode, a gate driving chip connected to the scan line to generate a gate signal to drive the first thin film transistor and the second thin film transistor, and a source driving chip connected to the first data line and the second data line to respectively provide data signals to the first pixel electrode and the second pixel electrode, the data line repair structure comprising:
 a first first repair line and a first second repair line parallel to the scan line and crossing a first end of each the first data line and the second data line; 
 a fourth first repair line and fourth second repair line formed in an oblique line area of the liquid crystal panel, coupled to the first first repair line and the first second repair line, respectively; 
 a second first repair line parallel to the first data line and coupled to the gate driving chip and the fourth first repair line; 
 a second second repair line parallel to the first data line and coupled to the gate driving chip and the fourth second repair line; 
 a third first repair line and a third second repair line respectively coupled to the second first repair line and the second second repair line, parallel to the scan line, and separated from a second end of each the first data line and the second data line; 
 a first floating line corresponding to the first data line, connected between the third first repair line and the second end of the first data line when the first data line has a first broken point; and 
 a second floating line corresponding to the second data line, connected between the third second repair line and the second end of the second data line when the second data line has a second broken point. 
 
     
     
       8. The data line repair structure as claimed in  claim 7 , wherein the source driving chip transmits the data signal through the first first repair line, the fourth first repair line, the second first repair line, the third first repair line and the first floating line to the first pixel electrode when the first data line has the first broken point, and transmits the data signal through the first second repair line, the fourth second repair line, the second second repair line, the third second repair line and the second floating line to the second pixel electrode when the second data line has the second broken point. 
     
     
       9. The data line repair structure as claimed in  claim 7 , wherein the gate driving chip is bound to a first flexible board, the second first repair line and the second second repair line are connected to the gate driving chip by lines of the first flexible board, and the third first repair line and the third second repair line are connected to the gate driving chip by another lines of the first flexible board. 
     
     
       10. The data line repair structure as claimed in  claim 7 , wherein the first end of the first data line is on one side near the source driving chip and the second end of the first data line is on the opposite side of the source driving chip. 
     
     
       11. The data line repair structure as claimed in  claim 7 , wherein the first floating line overlaps the third first repair line and the third second repair line, and the second floating line overlaps one of the third first repair line and the third second repair line. 
     
     
       12. The data line repair structure as claimed in  claim 7 , wherein a material of the first floating line and the second floating line is metal, Indium Tin Oxide (ITO), or other conductive materials. 
     
     
       13. A data line repair structure for a liquid crystal display panel comprising a scan line, a data line crossing the scan line, a thin film transistor formed where the scan line crosses the data line and connected to a pixel electrode, a gate driving chip electrical connected to the scan line to generate a gate signal to drive the thin film transistor, and a source driving chip connected to the data line to provide a data signal to the pixel electrode, the data line repair structure comprising:
 a first repair line parallel to the scan line and crossing a first end of the data line; 
 a fourth repair line formed in an oblique line area of the liquid crystal panel, coupled to the first repair line; 
 a second repair line parallel to the data line, coupled to the fourth repair line and a bypass circuit line of a flexible board; 
 a third repair line parallel to the scan line, coupled to the bypass circuit line of the flexible board and separated from a second end of the data line; and 
 a floating line connected between the third repair line and the second end of the data line when the data line has a broken point. 
 
     
     
       14. The data line repair structure as claimed in  claim 13 , wherein the source driving chip transmits the data signal through the first repair line, the fourth repair line, the second repair line, the third repair line and the floating line to the pixel electrode when the data line has the broken point. 
     
     
       15. The data line repair structure as claimed in  claim 13 , wherein the gate driving chip is bound to the flexible board. 
     
     
       16. The data line repair structure as claimed in  claim 13 , wherein the first end of the data line is on one side near the source driving chip and the second end of the data line is on the opposite side of the source driving chip. 
     
     
       17. The data line repair structure as claimed in  claim 13 , wherein a material of the floating line is metal, Indium Tin Oxide (ITO), or other conductive materials.